IPython 9 logfile causes crash #14825
Description
Running ipython with --logfile or --logappend causes a crash in ipython>=9
e.g. ipython --logfile=log.txt
This is failing due to the following error:
File "/usr/local/lib/python3.13/site-packages/IPython/core/interactiveshell.py", line 817, in init_logstart
self.magic('logstart %s' % self.logfile)
^^^^^^^^^^
AttributeError: 'TerminalInteractiveShell' object has no attribute 'magic'Using docker for reproducibility
docker pull python@sha256:385ccb8304f6330738a6d9e6fa0bd7608e006da7e15bc52b33b0398e1ba4a15b
(digest matches current latest tag)
Installing ipython==9.0.1 and running with --logfile=log.txt with verbose crash:
docker run --rm python@sha256:385ccb8304f6330738a6d9e6fa0bd7608e006da7e15bc52b33b0398e1ba4a15b \
sh -c \
'pip install -qq ipython
ipython --logfile=log.txt --BaseIPythonApplication.verbose_crash=True
cat /root/.ipython/Crash_report_ipython.txt'Details
---------------------------------------------------------------------------
---------------------------------------------------------------------------
AttributeError Python 3.13.2: /usr/local/bin/python3.13
Thu Mar 6 19:37:39 2025
A problem occurred executing Python code. Here is the sequence of function
calls leading up to the error, with the most recent (innermost) call last.
File /usr/local/bin/ipython:8
1 #!/usr/local/bin/python3.13
2 # -*- coding: utf-8 -*-
3 import re
4 import sys
5 from IPython import start_ipython
6 if __name__ == '__main__':
7 sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
----> 8 sys.exit(start_ipython())
File /usr/local/lib/python3.13/site-packages/IPython/__init__.py:139, in start_ipython(argv=None, **kwargs={})
113 def start_ipython(argv=None, **kwargs):
114 """Launch a normal IPython instance (as opposed to embedded)
115
116 `IPython.embed()` puts a shell in a particular calling scope,
(...) 136 allowing configuration of the instance (see :ref:`terminal_options`).
137 """
138 from IPython.terminal.ipapp import launch_new_instance
--> 139 return launch_new_instance(argv=argv, **kwargs)
launch_new_instance = <bound method Application.launch_instance of <class 'IPython.terminal.ipapp.TerminalIPythonApp'>>
argv = None
kwargs = {}
File /usr/local/lib/python3.13/site-packages/traitlets/config/application.py:1074, in Application.launch_instance(cls=<class 'IPython.terminal.ipapp.TerminalIPythonApp'>, argv=None, **kwargs={})
1067 @classmethod
1068 def launch_instance(cls, argv: ArgvType = None, **kwargs: t.Any) -> None:
1069 """Launch a global instance of this Application
1070
1071 If a global instance already exists, this reinitializes and starts it
1072 """
1073 app = cls.instance(**kwargs)
-> 1074 app.initialize(argv)
app = <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620>
argv = None 1075 app.start()
File /usr/local/lib/python3.13/site-packages/traitlets/config/application.py:118, in catch_config_error.<locals>.inner(app=<IPython.terminal.ipapp.TerminalIPythonApp object>, *args=(None,), **kwargs={})
115 @functools.wraps(method)
116 def inner(app: Application, *args: t.Any, **kwargs: t.Any) -> t.Any:
117 try:
--> 118 return method(app, *args, **kwargs)
method = <function TerminalIPythonApp.initialize at 0xffffa318f1a0>
app = <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620>
args = (None,)
kwargs = {} 119 except (TraitError, ArgumentError) as e:
120 app.log.fatal("Bad config encountered during initialization: %s", e)
121 app.log.debug("Config at the time: %s", app.config)
122 app.exit(1)
File /usr/local/lib/python3.13/site-packages/IPython/terminal/ipapp.py:286, in TerminalIPythonApp.initialize(self=<IPython.terminal.ipapp.TerminalIPythonApp object>, argv=None)
274 @catch_config_error
275 def initialize(self, argv=None):
276 """Do actions after construct, but before starting the app."""
277 super(TerminalIPythonApp, self).initialize(argv)
278 if self.subapp is not None:
279 # don't bother initializing further, starting subapp
280 return
281 # print(self.extra_args)
282 if self.extra_args and not self.something_to_run:
283 self.file_to_run = self.extra_args[0]
284 self.init_path()
285 # create the shell
--> 286 self.init_shell()
self = <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620> 287 # and draw the banner
288 self.init_banner()
289 # Now a variety of things that happen after the banner is printed.
290 self.init_gui_pylab()
291 self.init_extensions()
292 self.init_code()
File /usr/local/lib/python3.13/site-packages/IPython/terminal/ipapp.py:300, in TerminalIPythonApp.init_shell(self=<IPython.terminal.ipapp.TerminalIPythonApp object>)
294 def init_shell(self):
295 """initialize the InteractiveShell instance"""
296 # Create an InteractiveShell instance.
297 # shell.display_banner should always be False for the terminal
298 # based app, because we call shell.show_banner() by hand below
299 # so the banner shows *before* all extension loading stuff.
--> 300 self.shell = self.interactive_shell_class.instance(parent=self,
self = <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620> 301 profile_dir=self.profile_dir,
302 ipython_dir=self.ipython_dir, user_ns=self.user_ns)
303 self.shell.configurables.append(self)
File /usr/local/lib/python3.13/site-packages/traitlets/config/configurable.py:583, in SingletonConfigurable.instance(cls=<class 'IPython.terminal.interactiveshell.TerminalInteractiveShell'>, *args=(), **kwargs={'ipython_dir': '/root/.ipython', 'parent': <IPython.terminal.ipapp.TerminalIPythonApp object>, 'profile_dir': <IPython.core.profiledir.ProfileDir object>, 'user_ns': None})
553 @classmethod
554 def instance(cls: type[CT], *args: t.Any, **kwargs: t.Any) -> CT:
555 """Returns a global instance of this class.
556
557 This method create a new instance if none have previously been created
(...) 579 True
580 """
581 # Create and save the instance
582 if cls._instance is None:
--> 583 inst = cls(*args, **kwargs)
cls = <class 'IPython.terminal.interactiveshell.TerminalInteractiveShell'>
args = ()
kwargs = {'parent': <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620>, 'profile_dir': <IPython.core.profiledir.ProfileDir object at 0xffffa354bcb0>, 'ipython_dir': '/root/.ipython', 'user_ns': None} 584 # Now make sure that the instance will also be returned by
585 # parent classes' _instance attribute.
586 for subclass in cls._walk_mro():
587 subclass._instance = inst
589 if isinstance(cls._instance, cls):
590 return cls._instance
591 else:
592 raise MultipleInstanceError(
593 f"An incompatible sibling of '{cls.__name__}' is already instantiated"
594 f" as singleton: {type(cls._instance).__name__}"
595 )
File /usr/local/lib/python3.13/site-packages/IPython/terminal/interactiveshell.py:977, in TerminalInteractiveShell.__init__(self=<IPython.terminal.interactiveshell.TerminalInteractiveShell object>, *args=(), **kwargs={'ipython_dir': '/root/.ipython', 'parent': <IPython.terminal.ipapp.TerminalIPythonApp object>, 'profile_dir': <IPython.core.profiledir.ProfileDir object>, 'user_ns': None})
976 def __init__(self, *args, **kwargs) -> None:
--> 977 super(TerminalInteractiveShell, self).__init__(*args, **kwargs)
self = <IPython.terminal.interactiveshell.TerminalInteractiveShell object at 0xffffa31bc590>
args = ()
kwargs = {'parent': <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620>, 'profile_dir': <IPython.core.profiledir.ProfileDir object at 0xffffa354bcb0>, 'ipython_dir': '/root/.ipython', 'user_ns': None}
TerminalInteractiveShell = <class 'IPython.terminal.interactiveshell.TerminalInteractiveShell'> 978 self._set_autosuggestions(self.autosuggestions_provider)
979 self.init_prompt_toolkit_cli()
980 self.init_term_title()
981 self.keep_running = True
982 self._set_formatter(self.autoformatter)
File /usr/local/lib/python3.13/site-packages/IPython/core/interactiveshell.py:650, in InteractiveShell.__init__(self=<IPython.terminal.interactiveshell.TerminalInteractiveShell object>, ipython_dir='/root/.ipython', profile_dir=<IPython.core.profiledir.ProfileDir object>, user_module=None, user_ns=None, custom_exceptions=((), None), **kwargs={'parent': <IPython.terminal.ipapp.TerminalIPythonApp object>})
632 self.init_logger()
633 self.init_builtins()
635 # The following was in post_config_initialization
636 self.raw_input_original = input
637 self.init_completer()
638 # TODO: init_io() needs to happen before init_traceback handlers
639 # because the traceback handlers hardcode the stdout/stderr streams.
640 # This logic in in debugger.Pdb and should eventually be changed.
641 self.init_io()
642 self.init_traceback_handlers(custom_exceptions)
643 self.init_prompts()
644 self.init_display_formatter()
645 self.init_display_pub()
646 self.init_data_pub()
647 self.init_displayhook()
648 self.init_magics()
649 self.init_alias()
--> 650 self.init_logstart()
self = <IPython.terminal.interactiveshell.TerminalInteractiveShell object at 0xffffa31bc590> 651 self.init_pdb()
652 self.init_extension_manager()
653 self.init_payload()
654 self.events.trigger('shell_initialized', self)
655 atexit.register(self.atexit_operations)
657 # The trio runner is used for running Trio in the foreground thread. It
658 # is different from `_trio_runner(async_fn)` in `async_helpers.py`
659 # which calls `trio.run()` for every cell. This runner runs all cells
660 # inside a single Trio event loop. If used, it is set from
661 # `ipykernel.kernelapp`.
662 self.trio_runner = None
File /usr/local/lib/python3.13/site-packages/IPython/core/interactiveshell.py:817, in InteractiveShell.init_logstart(self=<IPython.terminal.interactiveshell.TerminalInteractiveShell object>)
811 def init_logstart(self):
812 """Initialize logging in case it was requested at the command line.
813 """
814 if self.logappend:
815 self.magic('logstart %s append' % self.logappend)
816 elif self.logfile:
--> 817 self.magic('logstart %s' % self.logfile)
self = <IPython.terminal.interactiveshell.TerminalInteractiveShell object at 0xffffa31bc590> 818 elif self.logstart:
819 self.magic('logstart')
AttributeError: 'TerminalInteractiveShell' object has no attribute 'magic'
**********************************************************************
Oops, ipython crashed. We do our best to make it stable, but...
A crash report was automatically generated with the following information:
- A verbatim copy of the crash traceback.
- A copy of your input history during this session.
- Data on your current ipython configuration.
It was left in the file named:
'/root/.ipython/Crash_report_ipython.txt'
If you can email this file to the developers, the information in it will help
them in understanding and correcting the problem.
You can mail it to: The IPython Development Team at ipython-dev@python.org
with the subject 'ipython Crash Report'.
If you want to do it now, the following command will work (under Unix):
mail -s 'ipython Crash Report' ipython-dev@python.org < /root/.ipython/Crash_report_ipython.txt
In your email, please also include information about:
- The operating system under which the crash happened: Linux, macOS, Windows,
other, and which exact version (for example: Ubuntu 16.04.3, macOS 10.13.2,
Windows 10 Pro), and whether it is 32-bit or 64-bit;
- How ipython was installed: using pip or conda, from GitHub, as part of
a Docker container, or other, providing more detail if possible;
- How to reproduce the crash: what exact sequence of instructions can one
input to get the same crash? Ideally, find a minimal yet complete sequence
of instructions that yields the crash.
To ensure accurate tracking of this issue, please file a report about it at:
https://github.com/ipython/ipython/issues
Hit <Enter> to quit (your terminal may close):Error in sys.excepthook:
Traceback (most recent call last):
File "/usr/local/lib/python3.13/site-packages/IPython/core/application.py", line 288, in excepthook
return self.crash_handler(etype, evalue, tb)
~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/site-packages/IPython/core/crashhandler.py", line 206, in __call__
builtin_mod.input("Hit <Enter> to quit (your terminal may close):")
~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
EOFError: EOF when reading a line
Original exception was:
Traceback (most recent call last):
File "/usr/local/bin/ipython", line 8, in <module>
sys.exit(start_ipython())
~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.13/site-packages/IPython/__init__.py", line 139, in start_ipython
return launch_new_instance(argv=argv, **kwargs)
File "/usr/local/lib/python3.13/site-packages/traitlets/config/application.py", line 1074, in launch_instance
app.initialize(argv)
~~~~~~~~~~~~~~^^^^^^
File "/usr/local/lib/python3.13/site-packages/traitlets/config/application.py", line 118, in inner
return method(app, *args, **kwargs)
File "/usr/local/lib/python3.13/site-packages/IPython/terminal/ipapp.py", line 286, in initialize
self.init_shell()
~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.13/site-packages/IPython/terminal/ipapp.py", line 300, in init_shell
self.shell = self.interactive_shell_class.instance(parent=self,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
profile_dir=self.profile_dir,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ipython_dir=self.ipython_dir, user_ns=self.user_ns)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/site-packages/traitlets/config/configurable.py", line 583, in instance
inst = cls(*args, **kwargs)
File "/usr/local/lib/python3.13/site-packages/IPython/terminal/interactiveshell.py", line 977, in __init__
super(TerminalInteractiveShell, self).__init__(*args, **kwargs)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/site-packages/IPython/core/interactiveshell.py", line 650, in __init__
self.init_logstart()
~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.13/site-packages/IPython/core/interactiveshell.py", line 817, in init_logstart
self.magic('logstart %s' % self.logfile)
^^^^^^^^^^
AttributeError: 'TerminalInteractiveShell' object has no attribute 'magic'
***************************************************************************
IPython post-mortem report
{'commit_hash': 'd64897cf0',
'commit_source': 'installation',
'default_encoding': 'utf-8',
'ipython_path': '/usr/local/lib/python3.13/site-packages/IPython',
'ipython_version': '9.0.1',
'os_name': 'posix',
'platform': 'Linux-6.10.14-linuxkit-aarch64-with-glibc2.36',
'sys_executable': '/usr/local/bin/python3.13',
'sys_platform': 'linux',
'sys_version': '3.13.2 (main, Feb 25 2025, 21:31:02) [GCC 12.2.0]'}
***************************************************************************
Application name: ipython
Current user configuration structure:
{'BaseIPythonApplication': {'verbose_crash': True},
'TerminalInteractiveShell': {'logfile': 'log.txt'}}
***************************************************************************
Crash traceback:
---------------------------------------------------------------------------
---------------------------------------------------------------------------
AttributeError Python 3.13.2: /usr/local/bin/python3.13
Thu Mar 6 19:37:39 2025
A problem occurred executing Python code. Here is the sequence of function
calls leading up to the error, with the most recent (innermost) call last.
File /usr/local/bin/ipython:8
1 #!/usr/local/bin/python3.13
2 # -*- coding: utf-8 -*-
3 import re
4 import sys
5 from IPython import start_ipython
6 if __name__ == '__main__':
7 sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
----> 8 sys.exit(start_ipython())
File /usr/local/lib/python3.13/site-packages/IPython/__init__.py:139, in start_ipython(argv=None, **kwargs={})
113 def start_ipython(argv=None, **kwargs):
114 """Launch a normal IPython instance (as opposed to embedded)
115
116 `IPython.embed()` puts a shell in a particular calling scope,
(...) 136 allowing configuration of the instance (see :ref:`terminal_options`).
137 """
138 from IPython.terminal.ipapp import launch_new_instance
--> 139 return launch_new_instance(argv=argv, **kwargs)
launch_new_instance = <bound method Application.launch_instance of <class 'IPython.terminal.ipapp.TerminalIPythonApp'>>
argv = None
kwargs = {}
File /usr/local/lib/python3.13/site-packages/traitlets/config/application.py:1074, in Application.launch_instance(cls=<class 'IPython.terminal.ipapp.TerminalIPythonApp'>, argv=None, **kwargs={})
1067 @classmethod
1068 def launch_instance(cls, argv: ArgvType = None, **kwargs: t.Any) -> None:
1069 """Launch a global instance of this Application
1070
1071 If a global instance already exists, this reinitializes and starts it
1072 """
1073 app = cls.instance(**kwargs)
-> 1074 app.initialize(argv)
app = <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620>
argv = None 1075 app.start()
File /usr/local/lib/python3.13/site-packages/traitlets/config/application.py:118, in catch_config_error.<locals>.inner(app=<IPython.terminal.ipapp.TerminalIPythonApp object>, *args=(None,), **kwargs={})
115 @functools.wraps(method)
116 def inner(app: Application, *args: t.Any, **kwargs: t.Any) -> t.Any:
117 try:
--> 118 return method(app, *args, **kwargs)
method = <function TerminalIPythonApp.initialize at 0xffffa318f1a0>
app = <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620>
args = (None,)
kwargs = {} 119 except (TraitError, ArgumentError) as e:
120 app.log.fatal("Bad config encountered during initialization: %s", e)
121 app.log.debug("Config at the time: %s", app.config)
122 app.exit(1)
File /usr/local/lib/python3.13/site-packages/IPython/terminal/ipapp.py:286, in TerminalIPythonApp.initialize(self=<IPython.terminal.ipapp.TerminalIPythonApp object>, argv=None)
274 @catch_config_error
275 def initialize(self, argv=None):
276 """Do actions after construct, but before starting the app."""
277 super(TerminalIPythonApp, self).initialize(argv)
278 if self.subapp is not None:
279 # don't bother initializing further, starting subapp
280 return
281 # print(self.extra_args)
282 if self.extra_args and not self.something_to_run:
283 self.file_to_run = self.extra_args[0]
284 self.init_path()
285 # create the shell
--> 286 self.init_shell()
self = <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620> 287 # and draw the banner
288 self.init_banner()
289 # Now a variety of things that happen after the banner is printed.
290 self.init_gui_pylab()
291 self.init_extensions()
292 self.init_code()
File /usr/local/lib/python3.13/site-packages/IPython/terminal/ipapp.py:300, in TerminalIPythonApp.init_shell(self=<IPython.terminal.ipapp.TerminalIPythonApp object>)
294 def init_shell(self):
295 """initialize the InteractiveShell instance"""
296 # Create an InteractiveShell instance.
297 # shell.display_banner should always be False for the terminal
298 # based app, because we call shell.show_banner() by hand below
299 # so the banner shows *before* all extension loading stuff.
--> 300 self.shell = self.interactive_shell_class.instance(parent=self,
self = <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620> 301 profile_dir=self.profile_dir,
302 ipython_dir=self.ipython_dir, user_ns=self.user_ns)
303 self.shell.configurables.append(self)
File /usr/local/lib/python3.13/site-packages/traitlets/config/configurable.py:583, in SingletonConfigurable.instance(cls=<class 'IPython.terminal.interactiveshell.TerminalInteractiveShell'>, *args=(), **kwargs={'ipython_dir': '/root/.ipython', 'parent': <IPython.terminal.ipapp.TerminalIPythonApp object>, 'profile_dir': <IPython.core.profiledir.ProfileDir object>, 'user_ns': None})
553 @classmethod
554 def instance(cls: type[CT], *args: t.Any, **kwargs: t.Any) -> CT:
555 """Returns a global instance of this class.
556
557 This method create a new instance if none have previously been created
(...) 579 True
580 """
581 # Create and save the instance
582 if cls._instance is None:
--> 583 inst = cls(*args, **kwargs)
cls = <class 'IPython.terminal.interactiveshell.TerminalInteractiveShell'>
args = ()
kwargs = {'parent': <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620>, 'profile_dir': <IPython.core.profiledir.ProfileDir object at 0xffffa354bcb0>, 'ipython_dir': '/root/.ipython', 'user_ns': None} 584 # Now make sure that the instance will also be returned by
585 # parent classes' _instance attribute.
586 for subclass in cls._walk_mro():
587 subclass._instance = inst
589 if isinstance(cls._instance, cls):
590 return cls._instance
591 else:
592 raise MultipleInstanceError(
593 f"An incompatible sibling of '{cls.__name__}' is already instantiated"
594 f" as singleton: {type(cls._instance).__name__}"
595 )
File /usr/local/lib/python3.13/site-packages/IPython/terminal/interactiveshell.py:977, in TerminalInteractiveShell.__init__(self=<IPython.terminal.interactiveshell.TerminalInteractiveShell object>, *args=(), **kwargs={'ipython_dir': '/root/.ipython', 'parent': <IPython.terminal.ipapp.TerminalIPythonApp object>, 'profile_dir': <IPython.core.profiledir.ProfileDir object>, 'user_ns': None})
976 def __init__(self, *args, **kwargs) -> None:
--> 977 super(TerminalInteractiveShell, self).__init__(*args, **kwargs)
self = <IPython.terminal.interactiveshell.TerminalInteractiveShell object at 0xffffa31bc590>
args = ()
kwargs = {'parent': <IPython.terminal.ipapp.TerminalIPythonApp object at 0xffffa354b620>, 'profile_dir': <IPython.core.profiledir.ProfileDir object at 0xffffa354bcb0>, 'ipython_dir': '/root/.ipython', 'user_ns': None}
TerminalInteractiveShell = <class 'IPython.terminal.interactiveshell.TerminalInteractiveShell'> 978 self._set_autosuggestions(self.autosuggestions_provider)
979 self.init_prompt_toolkit_cli()
980 self.init_term_title()
981 self.keep_running = True
982 self._set_formatter(self.autoformatter)
File /usr/local/lib/python3.13/site-packages/IPython/core/interactiveshell.py:650, in InteractiveShell.__init__(self=<IPython.terminal.interactiveshell.TerminalInteractiveShell object>, ipython_dir='/root/.ipython', profile_dir=<IPython.core.profiledir.ProfileDir object>, user_module=None, user_ns=None, custom_exceptions=((), None), **kwargs={'parent': <IPython.terminal.ipapp.TerminalIPythonApp object>})
632 self.init_logger()
633 self.init_builtins()
635 # The following was in post_config_initialization
636 self.raw_input_original = input
637 self.init_completer()
638 # TODO: init_io() needs to happen before init_traceback handlers
639 # because the traceback handlers hardcode the stdout/stderr streams.
640 # This logic in in debugger.Pdb and should eventually be changed.
641 self.init_io()
642 self.init_traceback_handlers(custom_exceptions)
643 self.init_prompts()
644 self.init_display_formatter()
645 self.init_display_pub()
646 self.init_data_pub()
647 self.init_displayhook()
648 self.init_magics()
649 self.init_alias()
--> 650 self.init_logstart()
self = <IPython.terminal.interactiveshell.TerminalInteractiveShell object at 0xffffa31bc590> 651 self.init_pdb()
652 self.init_extension_manager()
653 self.init_payload()
654 self.events.trigger('shell_initialized', self)
655 atexit.register(self.atexit_operations)
657 # The trio runner is used for running Trio in the foreground thread. It
658 # is different from `_trio_runner(async_fn)` in `async_helpers.py`
659 # which calls `trio.run()` for every cell. This runner runs all cells
660 # inside a single Trio event loop. If used, it is set from
661 # `ipykernel.kernelapp`.
662 self.trio_runner = None
File /usr/local/lib/python3.13/site-packages/IPython/core/interactiveshell.py:817, in InteractiveShell.init_logstart(self=<IPython.terminal.interactiveshell.TerminalInteractiveShell object>)
811 def init_logstart(self):
812 """Initialize logging in case it was requested at the command line.
813 """
814 if self.logappend:
815 self.magic('logstart %s append' % self.logappend)
816 elif self.logfile:
--> 817 self.magic('logstart %s' % self.logfile)
self = <IPython.terminal.interactiveshell.TerminalInteractiveShell object at 0xffffa31bc590> 818 elif self.logstart:
819 self.magic('logstart')
AttributeError: 'TerminalInteractiveShell' object has no attribute 'magic'
***************************************************************************
History of session input: